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NHC’s Graphical Tropical Weather Outlook

The National Hurricane Center (NHC) is issuing an experimental Graphical Tropical Weather Outlook (GTWO) four times per day (2:00 am, 8:00 am, 2:00 pm, and 8:00 pm EDT) to augment the operational text Tropical Weather Outlook (TWO). The graphical TWO will include a three-tiered, color-coded, categorical tropical cyclone genesis forecast showing low-probability of genesis (less than 20%), medium-probability of genesis (from 20-50%), and high-probability of genesis (greater than 50%). See http://www.nhc.noaa.gov/gtwo_atl.shtml for an example.

Active tropical cyclones are also shown on the graphic in the form of a cyclone symbol (i.e., an “L” for tropical depressions, a tropical storm symbol or a hurriacne symbol).

During the hurricane season, Local 10 meteorologists will discuss the most significant tropical systems in each newscast along with our insight on the forecast.